As long as you have an industrial and commercial tax certificate and three books, one is to put novels and martial arts together, stories and love together, and the other is an old one, you can do it.

Now you have a computer, not too good, as long as it works, you can,

With a computer, you can keep records, for example, how much you earned today, and how much you lost, so you can calculate whether it's not, and you can make a total on the New Year.

You can also learn a computer software, etc.